Graining-tool



P; A. GSTALDER.

GRAINING TOOL.

APPLICATION FILED JUNE 20. m9.

1,3&7,030.

Patented July 29, 1920.

A TTORNEYQS UNITED STATES PATENT OFFICE.

PAUL A. GSTALDER, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO THE OHIO VARNISI-I COMPANY, OF CLEVELAND, OHIO, A

CORPORATION OF OHIO.

GRAINING-TOOL.

Specification of Letters Patent.

Patented July 20, 1920.

' had to the accompanying drawings.

The object of this invention is to provide a simple and efficient graining tool for manipulating graining compound applied to the surface to give it such a configuration that, when varnished, an appearance will be obtained similar to the natural grain of the wood.

Graining tools which wipe across the surface have been used but are slow in operation. Graining rollers which simply roll over the surface have also been used, but

produce such regularity in the marking that the imitative effect is interfered with.

The tool of this invention has a combination of both wiping and rolling effects, that is to say, it may be'used as a wiper or as a roller, and the two may so closely follow each other as to produce very quickly an irregular configuration, thus heightening the resemblance to natural wood.

Another characteristic of my graining tool is that it has an absorbent surface so arranged to take up the graining compound over which it may be rolled or drawn, and this compound may then be transferred by impression, or printed in other words, upon a dried surface, thus varying the result from light flakes where the material is removed to dark flakes where it is applied. The absorbent surface may conveniently be made of chamois-skin, and should surround a yielding pad of rubber or other material.

To secure the absorbent sheet to the pad on the roller in such manner that it will not be loosened by the solvent absorbed by the chamois-skin, I employ heated shellac. The shellac gum may be first dissolved and then heated sufficiently to drive off the major portion of its solvent, leaving a thick pasty mass. I find that such mass causes the chamois-skin to adhere tightly to the rubber backing and is of such coherence that it is" not dissolved by the graining compound thereafter absorbed by chamois-skin.

My invention comprises the above features and the means for accomplishing them, as

hereinafter more fully described and as definitely set out in the claims.

In the drawing, Figure 1 is a plan of my graining tool. Fig. 2 is an end elevation of the tool with the bail or handle partly broken away. Fig. 3 is a development of the surface of the tool on a reduced scale.

As shown in the drawings, A indicates the body of the tool, which is a roller of suit able material. Surrounding this and secured to it is a pad B of rubber or other elastic material having irregular projections b. The shellac binder covering the pad and projections is indicated by C; the absorbent sheet is indicated by D and the places where it crosses the projections by (Z.

E indicates the bail which is preferably made of spring wire bent intermediately to provide a handle 6, and near the ends have two legs 6 lying alongside the ends of the roller, these legs having their ends 6 turned inwardly into alinement and occupying axial end openings in the roller.

F indicates suitable projections carried on the ends of the roller and adapted to either clear the bail legs 6 as the roller rotates, or to engage such egs if the same are sprung slightly inward, as they may be by squeezing the handle 6. If the body of the roller is a block of wood, the projections F may conveniently be made of roundheaded tacks driven into the wood.

In the operation of the tool, the operator grasps the handle 6 and draws the roller over the surface. If he wishes to remove the material, or to print with material pre viously absorbed, in regions corresponding to the projections (Z, he simply llows the roller to rotate freely in the bail. If, however, he wishes to vary the formation, he squeezes the handle 6 slightly, stopping the rotation of the roller, so that it obtains a wiping effect. By making this stopping action of very short duration, he may vary the configuration without interfering materially with the speed of operation.

I claim:

1. In a graining tool, the combination of a roller having projections on its surface, and means for enabling the roller to rotate freely or to be held against rotation as desired.

2. The combination of a roller having irregular projections on its surface, a handle secured to the roller, the roller being ada )ted to be turned through a plurality of revoluby the springing of the handle may stop the rotation of the roller.

4. The combination of the roller, a spring 7 handle journaled to the roller at its axis,

and a projection on the end of the roller adapted to be engaged by the handle when it is sprung. V

5. The combination of the roller, a spring handle journaled at the axis of the roller,

projections on the ends of the roller adapted to be engaged by the handle when it :is

sprung, an elastic 'pad on tthe roller haying projections, and an absorbent "sheet sur-' rounding the pad and secured to it by an interposed adhesive. 7 i

6. In a device of bling the roller to be rotated an unlimited amount or be held against rotation when desired. e r j v In testimony w ereof I hereunto aflix my signature. 1 7 1 PA L A. GSTALDER.

the class described, the Y combination of a roller and means for ena- 

